Yeah, I know. The MS fonts aren't my issue; they were merely a temporary solution until the cause could be discovered and fixed. My issue is that Chrome 65 looks terrible. Tested it. The problem is only with Solus. Antergos, Ubuntu, Debian and Fedora don't have that issue.
For now, I've switched to Debian Stretch. The advantage of having endless hard drives in my machine, I suppose - makes switching between distros even easier.
Will check back if someone can help eventually.